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Xiwan Song

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  • Ningbo, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compound saw
    • Patent number 10,537,950
    • Issue date Jan 21, 2020
    • Ningbo Defeng Power Technology Co., Ltd.
    • Xiwan Song
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    Compound Saw
    • Publication number 20180221972
    • Publication date Aug 9, 2018
    • Ningbo Defeng Power Technology Co., Ltd.
    • Xiwan Song
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Cutter
    • Publication number 20140013912
    • Publication date Jan 16, 2014
    • NINGBO DEFENG POWER TECHNOLOGY CO., LTD.
    • Shige Chen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR